With this docker image you have a prepared system to build jekyll sites.
To build this image, cd to the checked out git repo and use the following
docker command to build it: docker build -t jekyll-asciidoctor .
Use the following docker command to run jekyll. Specify the folder which shall
be used as working directory. This shall usually be the folder containing
your jekyll directory:
docker run -i -v $(pwd):/var/local/jekyll -t jekyll-asciidoctor jekyll build.